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authorSteve French <smfrench@gmail.com>2017-09-19 18:40:03 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-05 09:44:01 +0200
commitdf1be2066433d6381efe5b092e7f662a4f1dada2 (patch)
treec7c8e29ca5de7eaa6f3c21f75930331e6b61451b /fs/cifs
parentf2d395b7bde53926bbca40e6e091e7fe4a644b4b (diff)
SMB3: Warn user if trying to sign connection that authenticated as guest
commit c721c38957fb19982416f6be71aae7b30630d83b upstream. It can be confusing if user ends up authenticated as guest but they requested signing (server will return error validating signed packets) so add log message for this. Signed-off-by: Steve French <smfrench@gmail.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2pdu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 9d8ad4b285fa..b98d96a41518 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1010,6 +1010,8 @@ SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
while (sess_data->func)
sess_data->func(sess_data);
+ if ((ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) && (ses->sign))
+ cifs_dbg(VFS, "signing requested but authenticated as guest\n");
rc = sess_data->result;
out:
kfree(sess_data);